You should always wear a helmet when engaging in active sports. Every time when we ski or snowboard we always have a POC Calyx helmet. The Calyx helmet features a hard ABS shell and dual-density polystyrene foam lining for protection and a comfortable fit. This helmet uses Mips Evolve technology which helps reduce rotational force transmitted to the brain in the event of an impact. The 360 ​​degree fit system is adjustable to ensure the best fit and keeps the helmet close to your head. so that it doesn't move. ventilation and exhaust holes allow our head to breathe and the RECCO reflector increases the likelihood that that they will find us in the event of an avalanche.